Man Utd lacked will to win - Van Gaal

Manchester United manager Louis van Gaal says he was "amazed" by his side's poor performance in the 3-0 defeat by Arsenal.

Arsenal stunned Manchester United with three goals in the opening 20 minutes - two from Alexis Sanchez and one from Mesut Ozil - which led to them leapfrogging the Red Devils into second place in the table.

It was the first time Manchester United have conceded three goals in the first 20 minutes of a Premier League match.